Blackburn FBD24 FLEXIBLE BRAID 76.8KCMIL, 24IN LONG

The FBD24 is a flexible tin-plated copper braid connector used to bond equipment that moves, vibrates, or expands, where a solid conductor would fatigue and break. It is 24 inches long, flat in shape, and rated 76.8 kcmil, so it carries the bonding path across things like transformer enclosures, switchgear doors, generator skids, busway sections, and expansion joints. Because it is flexible rather than rigid, it also takes up alignment mismatch between two ground points that do not line up.

Both ends are 2-hole lug terminals, so the braid bolts flat against a pad or enclosure with two fasteners per end. The two-hole pattern is what keeps the connection from rotating loose under vibration, which is why it is the standard for equipment bonding. Bolts, nuts, and washers are not part of the braid itself, so order hardware sized to the pad holes you are landing on.

It carries UL file E3060 and CSA LR29625. That pairing matters on jobs where the inspector or the spec calls for a listed bonding jumper rather than a fabricated one, and it covers you in Canada as well as the US. The braid is also made in the United States, which helps on Buy American and government MRO work.

The FBD24 braid is tin-plated copper. The plating slows surface oxidation on the individual strands and on the terminal faces, which keeps contact resistance down over time and makes it a better choice than bare copper for damp, outdoor, or corrosive locations. It also mates cleanly against aluminum or plated pads without the galvanic problem bare copper creates.

No. The FBD24 is a factory-terminated assembly with both 2-hole lugs pressed on at 24 inches. Cutting it destroys one termination and voids the UL E3060 and CSA listing that made it acceptable as a listed bonding jumper. If 24 inches is too long, leave a gentle loop rather than trimming, or order a shorter braid in the same family.

Use the braid wherever the two bonded points move relative to each other: hinged doors, vibration-isolated motors and generators, busway expansion sections, seismic joints. A solid or stranded jumper work-hardens and eventually cracks in that service. Where both ends are rigid and fixed, a conventional stranded bonding conductor is the simpler and cheaper answer. The FBD24 is the flexible flat-braid option, 24 inches long.

Sold each, so the quantity you order is the number of braids you get. Bonding jumpers are usually needed one per joint, so count your movable connections, not your panels.

The manufacturer part number is FBD24, from Blackburn. Within that family the numeric suffix is the length in inches, so FBD24 is the 24 inch version of the 76.8 kcmil flat flexible braid with 2-hole terminals on each end.